Board-fit and orientation
The 5037630591: The 0.059-inch (1.50 mm) insulation height keeps the mated connector low over the board, and the shrouded 4-wall design protects the male pins during handling and mating. The detent lock gives a positive hold when mated with the corresponding Pico-Lock receptacle — it clicks in and stays put, which matters in automotive or industrial gear where vibration is a given.
Gold on the mating end supports repeated connect-disconnect cycles without fretting corrosion; gold on the solder tail keeps the joint reliable through reflow. The 150 V voltage rating is a ceiling for the insulation system, not a continuous recommendation for all environments.